Coupling shackle



FIG. 1 is a right side view of a coupling shackle;

FIG. 2 is a right side view of the coupling shackle in an alternate position;

FIG. 3 is a rear view of the coupling shackle;

FIG. 4 is a rear view of the coupling shackle in an alternate position;

FIG. 5 is a front view of the coupling shackle;

FIG. 6 is a front view of the coupling shackle in an alternate position;

FIG. 7 is a left side view of the coupling shackle;

FIG. 8 is a left side view of the coupling shackle in an alternate position;

FIG. 9 is a top plan view of the coupling shackle;

FIG. 10 is a top plan view of the coupling shackle in an alternate position;

FIG. 11 is a bottom plan view of the coupling shackle;

FIG. 12 is a bottom plan view of the coupling shackle in an alternate position;

FIG. 13 is a perspective view of the coupling shackle;

FIG. 14 is a perspective view of the coupling shackle in an alternate position;

FIG. 15 is an exploded perspective view of the coupling shackle;

FIG. 16 is an exploded right side view of the coupling shackle; and,

FIG. 17 is an exploded left side view of the coupling shackle.

The broken lines are used to illustrate unclaimed environment and form no part of the claimed design. 

CLAIM The ornamental design for a coupling shackle, as shown and described. 